9) Which of the following is **not** a basic requirement for… 9) Which of the following is **not** a basic requirement for life? Read Details
44) Comets with extremely eccentric orbits, like comets Hyak… 44) Comets with extremely eccentric orbits, like comets Hyakutake and Hale-Bopp, Read Details
49) Sunspots are colder than the surrounding solar surface b… 49) Sunspots are colder than the surrounding solar surface because Read Details
30) A rocky leftover planetesimal orbiting the Sun is 30) A rocky leftover planetesimal orbiting the Sun is Read Details
22) After Mars, the next most likely candidates for life in… 22) After Mars, the next most likely candidates for life in the Solar System are Read Details
5) To detect an exoplanet by means of the Doppler shift, you… 5) To detect an exoplanet by means of the Doppler shift, you look for a periodic shift of the spectrum lines: Read Details
34) Which of the following methods has led to the most disco… 34) Which of the following methods has led to the most discoveries of massive planets orbiting near their parent stars? Read Details
18) What is the largest dwarf planet discovered to date? 18) What is the largest dwarf planet discovered to date? Read Details